Home / 129,091.20-193,377.60-73,622.40

Finding the Fourth Proportional to 129,091.20, 193,377.60 and 73,622.40

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Solution

The fourth proportional to 129,091.20, 193,377.60 and 73,622.40 is: 110,285.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,091.20 : 193,377.60 = 73,622.40 : x
  2. Step 2: Convert to fraction form
    129,091.20/193,377.60 = 73,622.40/x
  3. Step 3: Cross multiply
    129,091.20x = 193,377.60 × 73,622.40
  4. Step 4: Simplify right side
    129,091.20x = 14,236,923,018.24
  5. Step 5: Solve for x
    x = 14,236,923,018.24/129,091.20
  6. Step 6: Final answer
    x = 110,285.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.